At first it looked quite cute - reminded me of the good old tamagotchi's you used to have before they bought out these daft music band things they have now.
You do get a choice of 49 pet but you can only tell what about 4 of them actually are supposed to be. You get the usual options of - feed, clean up, walk, inject and turn the lights off, plus also a dance game, rock paper scissors, and a game where you guess which way the critter is pointing.
It seemed okay for a few days, I chose the Penguin and it was quite cute. After 3 days however the device cut out, and has not responded to a battery change.
So...good whilst it lasts I guess, but unfortunatly it doesnt last very long. Would recommend buying a tamagotchi instead.